Abstract

The authors investigated the switch-on transient properties of -type vanadium phthalocyanine (VOPc) transistors, which were fabricated by weak epitaxygrowth on ordered para-sexiphenyl layer. The overshoot phenomenon of drain current had been observed in the transistors, which was explained by the filling of carriers in traps of organic films. The small overshoot value of about 35% and transient duration time of demonstrated the low trap concentration in organic films, which were comparable to the reported hydrogenated amorphous-silicon thin-film transistors. Therefore, the transistors can be applied in active matrix liquid crystal display as switch elements.